Evaluate the expression 3.8 +0+ y for the given values of y value value of expression -4.3 -1.6 0 5.2 -0.5
1 answer:
The answers are -0.5, 2.2, 3.8, and 9.0
We need to evaluate the expression 3.8 + 0 + y for the given values of y.
Let x = 3.8 + 0 + y
The values of y are -4.3, -1.6, 0, and 5.2
Let's substitute the value of y in the expression and calculate the values of x.
- When y = -4.3, x = 3.8 + 0 + (-4.3) = 3.8 - 4.3 = -0.5
- When y = -1.6, x = 3.8 + 0 + (-1.6) = 3.8 - 1.6 = 2.2
- When y = 0, x = 3.8 + 0 + 0 = 3.8
- When y = 5.2, x = 3.8 + 0 + 5.2 = 3.8 + 5.2 = 9.0
Refer to the attached image for the values of the expression corresponding to the values of y.
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Answer:
ST = 4
Step-by-step explanation:
A segment joining the midpoints of 2 sides of a triangle is half the length of the third side.
ST = PQ substitute values
- 32 + 9x = (- 5x + 28) ← multiply both sides by 2 to clear the fraction
- 64 + 18x = - 5x + 28 (add 5x to both sides )
- 64 + 23x = 28 ( add 64 to both sides )
23x = 92 ( divide both sides by 23 )
x = 4
Then
ST = - 32 + 9x = - 32 + 9(4) = - 32 + 36 = 4